A metal-organic framework–based splitter for separating propylene from propane

  title={A metal-organic framework–based splitter for separating propylene from propane},
  author={Amandine Cadiau and Karim Adil and Prashant M. Bhatt and Youssef Belmabkhout and Mohamed Eddaoudi},
  pages={137 - 140}
Separating one organic from another Separating closely related organic molecules is a challenge (see the Perspective by Lin).The separation of acetylene from ethylene is needed in high-purity polymer production. Cui et al. developed a copper-based metal-organic framework with hexafluorosilicate and organic linkers designed to have a high affinity for acetylene. These materials, which capture four acetylene molecules in each pore, successfully separated acetylene from mixtures with ethylene… 

Tailor‐Made Microporous Metal–Organic Frameworks for the Full Separation of Propane from Propylene Through Selective Size Exclusion

Multicomponent column breakthrough experiments confirm that polymer-grade propylene (99.5%) can be obtained by this process, demonstrating its true potential as an alternative sorbent for efficient separation of propane/propylene mixtures.

Ethylene/ethane separation in a stable hydrogen-bonded organic framework through a gating mechanism

A microporous hydrogen-bonded organic framework that takes up ethylene with very good selectivity over ethane through a gating mechanism, validated by breakthrough experiments with high purity of ethylene (99.1%) at 333 K.

A dynamic MOF for efficient purification of propylene

Propylene is an important chemical feedstock for making chemical products such as polypropylene and acrylonitrile, whereas propane is well-known for heating and cooking. Propylene and propane are

Ultramicroporous Hydrogen-Bonded Organic Framework Material with a Thermoregulatory Gating Effect for Record Propylene Separation.

Propane/propylene separation is one of the most challenging and energy-consuming but most important tasks in the petrochemical industry. Herein, a stable hydrogen-bonded organic framework (HOF-FJU-1)

Metal–Organic Framework Materials for the Separation and Purification of Light Hydrocarbons

The relationships among the structural and compositional features of the newly synthesized MOF materials and their separation properties and mechanisms are highlighted and the existing challenges and possible research directions related to the further exploration of porous MOFs in this very active field are discussed.

Molecular sieving of ethylene from ethane using a rigid metal–organic framework

An ultramicroporous metal–organic framework, synthesized from calcium nitrate and squaric acid, that possesses rigid one-dimensional channels that separates ethylene from ethane but almost completely excludes ethane under ambient conditions is reported.

Pore Distortion in a Metal-Organic Framework for Regulated Separation of Propane and Propylene.

  • Liang YuXue Han Jing Li
  • Chemistry, Materials Science
    Journal of the American Chemical Society
  • 2021
The distorted pore structure of HIAM-301 successfully excludes propane and thus achieved simultaneously high selectivity (>150) and large capacity (∼3.2 mmol/g) of propylene at 298 K and 1 bar.

An Asymmetric Anion-Pillared Metal-Organic Framework as a Multisite Adsorbent Enables Simultaneous Removal of Propyne and Propadiene from Propylene.

A niobium oxide-fluoride anion-pillared interpenetrated material ZU-62 is presented, which features asymmetric O/F node coordination for the simultaneous removal of trace propyne and propadiene from propylene.

Electrochemical synthesis of continuous metal–organic framework membranes for separation of hydrocarbons

Membrane-based approaches can offer energy-efficient and cost-effective methods for various separation processes. Practical membranes must have high permselectivity at industrially relevant high

Hydrocarbons Separation and Purification with Porous Materials

Hydrocarbons, including methane, ethene, propene, para-xylene and ortho-xylene, are of great significance in current and future chemical industry. Separation and purification of hydrocarbons, such as



Hydrocarbon Separations in a Metal-Organic Framework with Open Iron(II) Coordination Sites

Neutron powder diffraction data confirm a side-on coordination of acetylene, ethylene, and propylene at the iron(II) centers, while also providing solid-state structural characterization of the much weaker interactions of ethane and propane with the metal.

Made-to-order metal-organic frameworks for trace carbon dioxide removal and air capture

It is shown that metal-organic framework crystal chemistry permits the construction of an isostructural metal- organic framework (SIFSIX-3-Cu) based on pyrazine/copper(II) two-dimensional periodic 44 square grids pillared by silicon hexafluoride anions that offers enhanced carbon dioxide physical adsorption properties, uptake and selectivity in highly diluted gas streams, a performance unachievable with other classes of porous materials.

Microporous metal-organic framework with potential for carbon dioxide capture at ambient conditions.

It is shown that a metal-organic frameworks (UTSA-16) displays high uptake of CO(2) at ambient conditions, making it a potentially useful adsorbent material for post-combustion carbon dioxide capture and biogas stream purification.

Porous materials with optimal adsorption thermodynamics and kinetics for CO2 separation

A crystal engineering or reticular chemistry strategy that controls pore functionality and size in a series of MOMs with coordinately saturated metal centres and periodically arrayed hexafluorosilicate anions enables a ‘sweet spot’ of kinetics and thermodynamics that offers high volumetric uptake at low CO2 partial pressure (less than 0.15 bar).

Propane/Propylene Separation by Pressure Swing Adsorption Using Zeolite 4A

In this work we have studied Pressure Swing Adsorption (PSA) process for separation of propane/propylene mixtures using zeolite 4A extrudates (CECA) as an alternative to distillation. Purified

Tunable Rare Earth fcu-MOF Platform: Access to Adsorption Kinetics Driven Gas/Vapor Separations via Pore Size Contraction.

The subsequent RE-1,4-NDC-fcu-MOF structural features, contracted windows/pores and high concentration of open metal sites combined with exceptional hydrothermal and chemical stabilities, yielded notable gas/solvent separation properties, driven mostly by adsorption kinetics as exemplified in this work for n-butane/methane, butanol/ methanol, andbutanol/water pair systems.

Olefin/Paraffin Separations by Reactive Absorption: A Review

Light olefins and paraffins are commonly separated by cryogenic distillation. A process based upon reversible chemical complexation, which employs a mass-separating agent rather than an

Ultra-Tuning of the Rare-Earth fcu-MOF Aperture Size for Selective Molecular Exclusion of Branched Paraffins.

Using isoreticular chemistry allows the design and construction of a new rare-earth metal (RE) fcu-MOF with a suitable aperture size for practical steric adsorptive separations, and the newly constructed RE (Y(3+) and Tb(3+)) fcu (3+) analogues display unprecedented total exclusion of branched paraffins from normal parAffins.